21837335

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{601}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 29083824

約数和(自身を除く): 7246489

約数列:

[1, 5, 13, 43, 65, 169, 215, 559, 601, 845, 2795, 3005, 7267, 7813, 25843, 36335, 39065, 101569, 129215, 335959, 507845, 1679795, 4367467, 21837335]

約数ペア:

[(1, 21837335), (5, 4367467), (13, 1679795), (43, 507845), (65, 335959), (169, 129215), (215, 101569), (559, 39065), (601, 36335), (845, 25843), (2795, 7813), (3005, 7267)]